/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

var zrUtil = require("static/plugins/js/zrender/lib/core/util");

var textContain = require("static/plugins/js/zrender/lib/contain/text");

var Axis = require("../Axis");

var _model = require("../../util/model");

var makeInner = _model.makeInner;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
var inner = makeInner();

function AngleAxis(scale, angleExtent) {
    angleExtent = angleExtent || [0, 360];
    Axis.call(this, "angle", scale, angleExtent);
    /**
     * Axis type
     *  - 'category'
     *  - 'value'
     *  - 'time'
     *  - 'log'
     * @type {string}
     */

    this.type = "category";
}

AngleAxis.prototype = {
    constructor: AngleAxis,

    /**
     * @override
     */
    pointToData: function (point, clamp) {
        return this.polar.pointToData(point, clamp)[
            this.dim === "radius" ? 0 : 1
        ];
    },
    dataToAngle: Axis.prototype.dataToCoord,
    angleToData: Axis.prototype.coordToData,

    /**
     * Only be called in category axis.
     * Angle axis uses text height to decide interval
     *
     * @override
     * @return {number} Auto interval for cateogry axis tick and label
     */
    calculateCategoryInterval: function () {
        var axis = this;
        var labelModel = axis.getLabelModel();
        var ordinalScale = axis.scale;
        var ordinalExtent = ordinalScale.getExtent(); // Providing this method is for optimization:
        // avoid generating a long array by `getTicks`
        // in large category data case.

        var tickCount = ordinalScale.count();

        if (ordinalExtent[1] - ordinalExtent[0] < 1) {
            return 0;
        }

        var tickValue = ordinalExtent[0];
        var unitSpan =
            axis.dataToCoord(tickValue + 1) - axis.dataToCoord(tickValue);
        var unitH = Math.abs(unitSpan); // Not precise, just use height as text width
        // and each distance from axis line yet.

        var rect = textContain.getBoundingRect(
            tickValue,
            labelModel.getFont(),
            "center",
            "top"
        );
        var maxH = Math.max(rect.height, 7);
        var dh = maxH / unitH; // 0/0 is NaN, 1/0 is Infinity.

        isNaN(dh) && (dh = Infinity);
        var interval = Math.max(0, Math.floor(dh));
        var cache = inner(axis.model);
        var lastAutoInterval = cache.lastAutoInterval;
        var lastTickCount = cache.lastTickCount; // Use cache to keep interval stable while moving zoom window,
        // otherwise the calculated interval might jitter when the zoom
        // window size is close to the interval-changing size.

        if (
            lastAutoInterval != null &&
            lastTickCount != null &&
            Math.abs(lastAutoInterval - interval) <= 1 &&
            Math.abs(lastTickCount - tickCount) <= 1 && // Always choose the bigger one, otherwise the critical
            // point is not the same when zooming in or zooming out.
            lastAutoInterval > interval
        ) {
            interval = lastAutoInterval;
        } // Only update cache if cache not used, otherwise the
        // changing of interval is too insensitive.
        else {
            cache.lastTickCount = tickCount;
            cache.lastAutoInterval = interval;
        }

        return interval;
    },
};
zrUtil.inherits(AngleAxis, Axis);
var _default = AngleAxis;
module.exports = _default;
